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FILE - NFL players union chief DeMaurice Smith pauses as he speaks during a news conference outside their headquarters, in this May 24, 2012 file photo taken in Washington. House Oversight and Government Reform Committee chairman Darrell Issa, a California Republican, and ranking Democrat Elijah Cummings of Maryland wrote NFLPA head DeMaurice Smith Monday Jan.28, 2013 to chastise the union for standing in the way of HGH testing and to warn that they might ask players to testify on Capitol Hill. (AP Photo/Carolyn Kaster, File)
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